Lock and latch.



No. 833,459. PATENTED OCT. 16, 1906.

J. HOPE, JR.

LOOK AND LATCH.

APPLIOATION FILED'JUNE10,,I905.

4SHEBTS-SHEET1.

NVENTQR FAA THE NDRRIS PETERSCLL, wllsmuarqu, n. c.

J, HOPE, JR.

LOOK AND LATCH. APPLICATION FILED JUNE 10, 1905.

PATENTED OCT. 16, 1906.

4 SHEETS-SHEET 2.

WITNESSES.

ATTORNEY.

No. 833,459. PATENTED 00m. 1s, 1.906. J. HOPE, JR.

LOCK AND LATCH.

APPLIOATIO'N FILED JUNE 10, 1905.

4 SHEETS-SHEET a.

PM 1 v (1 0w I 7' k P l 3 FIG 6 7p 5 H6 9 5 2% I flrZ/AW ATTORNEY 1n: NORRIS PETER; co-, wAsnmaraN, D. c.

No. 833,459. PATENTED 002B. 16, 1906.

J. HOPE, JE- I LOOK AND LATCH. APPLICATION FILED JUNE 10, 1905.-

4 SHEETS-SHEET 4.

WITNESSES.

n: NDRRIS PETER: cm, wAsHlmn-mv, o. c.

INVENTQR. k

ATTO NEY.

50 r Fig. 16 represents a section taken on the line UNITED STATES PATENT OFFICE.

JOHN HOPE, JR.-, OFPROVIDENCE, RHODE ISLAND.

' LOCK AND LATCH.

Applicati n filed June 10, 1906. Serial No. 264,723-

Letters Patent. Patented Oct. 16, 1906.

To all whom it may concern.-

Be it known that I, JOHN HOPE, J r. a citizen of the United States, residing at Providence, in the State of Rhode Island, have invented a new and useful Improvement in Locks and Latches, of which the following is a specification.

My invention relates to looks and latches which are provided with door-knobs, in conjunction with connected attaching plates which extend upon oppositesides of the stile of the door and across the edge thereof, the said plates and the contained lock mechanism being adapted for attachment to the door as one piece without separation into parts, a shallow notch being only required to be cut in the edge of the door to receive the latch-operating mechanism; and my invention consists in the improved construction and arrangement of a push-bar mechanism for operating the latch-bolt and in the combination of a push-bar mechanism with the locking mechanism of the outer knob.

In the accompanying drawings,gFigure 1 represents a View of the side of the lock which Fig. 2 represents a view of the side of the lock which is at the inner side of the door.

, the same.

Fig. 3 represents a section taken on theline 3 3 of Fig. 1-. Fig. 4 represents a top View of the lock. Fig. 5 represents a forward end view of the lock. Fig. 6 represents a horizontal section, taken on the line 6 6 of Fig. 1, showing the latchbolt in its outward. engaging position. Fig. 7 represents a horizontal section as in Fig. 6 with the latch-bolt in. its retracted position. Fig. 8 represents a top view of the cylinder which contains the tumbler-pins of the keyactuated mechanism for withdrawing the latch-bolt.

Fig. 10 represents a section taken on the line 10 10 of Fig. 4. Fig. 11 represents a section taken on the line 11 11 of Fig.

4. Fig. 12 represents anaxial section of the locking mechanism for the latch-bolt, taken on the line 12 12 of Fig. 1. Fig. 18 represents a section taken on the line 13 13 of Fig. 18. 'Fig.- 14 represents a section taken on the line 14 14 of Fig. 18. Fig. 15 represents a section taken on the line 15 15 of Fig. 4.

16 16 of Fig.4. Fig. 17 represents a section taken on the line .17 17 of Fig. 7. Fig. 18 represents a detail view showing a portion of the push-bar mechanism when the parts are Fig. 9 represents a side view of g as shown in Fig. 4. Fig. 19 represents a section taken on the line 19 19 of Fig. 4.

In the drawings, A represents the attaching-plate for the outer side of the' door, and

B the attaching-plate for the inner side; The front plate 0, which is preferably connected integrally with the outer plate A, is provided with the opening 1), adapted to receive the pivoted latch-bolt F, the said latchbolt .being made to turn on the pivot-pin c,

by means of which the latch-bolt is connec'ted with the outer plate A. The front plate 0 is also provided with the inwardly-turned flange a, to which the inner plate B is secured by means of the screws 3'.

The inner plate B is provided with the ,fiXed knob E and also with the inwardly-' extending boss 6, made integral with the plate B and bored out to receive the hollow shank 'f of the rotatable sleeve G, the said sleeve being provided with the flattened head g, by

means of which a movement of rotation may be imparted to the said sleeve, and upon the inner end of the sleeve G is placed the engaging pin b. The sleeve G is also provided with the inwardly-extending guiding-pin H, ;the outwardly-projectin head h of which i by striking the edges 71 i 01 the notch a, made at one side of the inner end of the boss-e of the inner plate, willserve to limit the rotary i movement of the said sleeve. .The inwardlyprojecting guide-pin H enters the peripheral groove 7c, made in'the sliding push-bar I, the i said push-bar being also provided with the l longitudinal groove Z, which connects with j the said peripheral groove.

chamber 'm, formed in the bore of the sleeve 1 G around the push-bar I, isplaced the spiral spring n, by meansv of which the said pushbar will be carried outward; the said spring In the annular v being compressed between" the annular which is provided with the recess 0, adapted to'receive the rounded or pointed end of the g The rotatable sleeve G' is provided with. a flange o,.the'inner side of spring-actuated engaging pin'p, by means of which the sleeve G will befrictionally held i in its desired intermediate position. v To thel forward end of the push-bar I 'is secured the 1 connected arms K and K, by means-of the turned at about a right angle to their position J 3 headless screw 9, (shown in the section-Fig;

IIO

19,)- the said arm K being slotted at its outer end so as to embrace the pin 7" of the arms of the latch-bolt, and by the movement of the push-bar I back and forth in the bore of tollie sleeve G the latch-bolt F will be operate The boss L, secured to the outer plate A, is bored out to receive the short push-bar I, the said push-bar being provided with a thumb-button J, as in the case of the inner push-bar I. The boss L is also bored out transversely at one side of its axis to receive the-segmental rockingpiece M,- by means of which motion is transmitted from the said push-bar I to the spring-actuated engaging pin N, the spring t, which serves to actuate the said engaging pin in the inward direction, also serving to actuate the push-bar I in the outward direction, a suitable stop being provided for limiting the said movement. The engaging pin N is preferably provided at its inner end-with the annular flanges u u tossuitably retain the engaging hook Z, by means of which operative connection is made with the latch-bolt, and the proper engagement with the rocking piece M iseffected by means of the notch S in the side of the pin N and the notch t in the side of the push-bar I.

The hook-sleeve O is frictionally held upon the hub a; .of the arms K and K and is provided at one side with a perforation to, through which access maybe had to the headless screw g, by .means of which the said arms K and K are secured to the push-bar I, and the said hook-sleeve is provided with a notch 23 at'one side of its inner end. to form the edges ac at .for the action thereon of the engaging pin 1) of the fbtatabie sleeve G.

The-arm K, which extends inwardly from the hub 'v ofthe arms K :K, is provided with the hooky, .by means of which engagement is made with the edge 2 of the segmental rocking piece T, whichis held in the chamber (1 of the tumbler-case P, which latter is securely held in the fixed knob D of the outer plate'A. The tumbler-case P is .providedat one side with theslot (1 adapted to'receive the tumbler-slide R, which slide is to be pushed inward in order to effect the withdrawal-of the latch-bolt F, the end '0 of the key S engaging with the shoulder d at the forward end of the key-receiving slot-e of the tumbler-slide. The tumbler-slide R is providedwith the idler-pins f f, which are acted upon by the spring-actuated tumbler-pins g.-,g,held in thetumbler-case P.

When the key S is pressed forward in the keyhole h, the idler-pins f f will be forced down tothe levelof the bottom of the slot b and then the forward end '0 of the keys will strike the. shoulder d. at-the end of the slot 0 and a then carry the tumbler-slide inward against the edge 7c of the segmental r'ockin piece T, the-rocking movement of which will,

through its engagement with the hook y of the arm K, serve to cause the withdrawal of the latch-bolt F for opening the door.

When the hook Z of the hook-sleeve O is thrown into engagement with the engaging pin N, as shown in Fig. 3, with the flattened head g of the rotatable sleeve G in the vertical position, the latch-bolt F may be withdrawn by pushing inwardly upon either one of the push-bars I and I, the guiding-pin H entering the longitudinal groove Z to allow the said movement; but when the flattened head 9 of the rotatable sleeve G is turned in the direction of the upper arrow, shown. in Fig. 2, to a horizontal position,.as shown in Fig. 18, the push-bar I being at the same time prevented from turning by its positive attachment to the hub 12 of the arms K and K, the engaging pin N will be released from the hook Z of the hook-sleeve 0, thus rendering the outer push-bar I inoperative to cause the withdrawal of the latch-bolt, and by reason of the entrance of the guiding-pin H into the peripheral groove Zc the pushbar I will be locked against inward movement,.so that in this case the latch-bolt could not be operated from either side of the door; but now when the flattened head 9 of therotary sleeve G is brought back to its former vertical position the hook-sleeve 0 being frictionally held upon the hub 12 of the arms K K will remain in its set position of disengagement, while the sleeve G will be brought back to its intermediate or normallposition, as indicated, by the entrance of the end of the spring-pin pinto the recess 0 of the flange 0 of the rotary sleeve G, and then upon pressing inward upon-the push-bar I the guiding-pin II-will enter the longitudinal groove Z, thus. allowing the said push-bar to act upon the latch-bolt; but in this case, by'reason of its disconnection from the hook-sleeve O, the outer pushbar I will be inoperative, and the latch-bolt can then only be operated from the outside by means of thekey S. Nowif it isdesired' toeffect the engagement of the ,outer pushbar I with the latchbolt, so that the latchbolt F may be operated from the outside without the employment of the key- S, then by turning the flattened head 9 of therotary sleeve G in the direction of the-arrow shown at the under side of the head 9 in Fig. 2 until the hook Z. of the hook-sleeve O .is brought into engagement with the head of the engaging pin N by reason of the engagementof the pin dwith the edge 00 of the .notch 00, madezin the said hook-sleeve, and then immediately returning the flattened head g toits vertical position, thus leaving the hook Zof the hooksleeve 0 in locking-engagementwith the ,pin N, thelatch-bolt may. be operated from the outside by means of the said push-bar I.

The-employment of the segmental-rocking piece between the outer push-bar Iand the engaging pin N by reason of its simplicity and smoothness of action constitutes a desirable improvement in the lock mechanism, and the employment of a segmental rocking piece to reverse the forward movement imparted by the key also constitutes a desirable improvement.

I claim as my invention 1. In a lock and latch, the combination of the inner and outer plates, the front plate, the latch-bolt, the push-bars or the inner and outer plates, the sprin '-actuated engaging pin, and means locatei l between the said push-bar or the outer plate and the said engaging pin for causing the simultaneous outward movement of the said push-bar, and the inward movement of the engaging pin, frictionally-held means for effecting an engagement between the said engaging pin and the push-bar of the inner plate, and connecting means between the latch-bolt and the push-bars whereby the latch-bolt may be withdrawn by the inward movement of either of the said pu sh-bars.

2. In a lock and latch, the combination of the outer plate and a knob fixed thereto, with an outer push-bar carried by said plate and independent of the knob, the engaging pin, means located between the said. push-bar and the engaging-pin for causing their simultaneous reverse movement, the pivotally-connected latch-bolt, and a frictionally-held engaging means for connecting the engaging pin with the latch-bo1t.

3. In a lock and latch, the combination of the outer plate, and a knob fixed thereto with an outer push-bar carried by said plate and independent of the knob, the engaging pin, means located between the said pushbar and the engaging pin for causing their simultaneous reverse movement, the pivotally-connected latch-bolt, the rocking segment held within the shank of the knob and a connecting means between the edge of the said rocking segment and the latch-bolt, whereby upon the rocking movement of the segment the latch-bolt will be withdrawn from its outward position, a key-actuated means for operating the rocking segment and the latch-bolt in one direction, and a spring for actuating the rocking segment and the latch-bolt in the opposite direction.

4. In a lock and latch, the combination of the inner plate provided with the inwardlyprojecting boss having the limiting shoulders, with the rotatable sleeve carrying the inwardly-directed guide-pin, said pin provided with the outwardly-projecting head adapted for engagement with the shoulders of the said boss to form a limiting-stop, and a pushbar provided with the longitudinal and peripheral grooves to be engaged by said guidepin, the latch-bolt and connecting devices between the latch-bolt and the said push-bar whereby upon turning the rotatable sleeve, the said push-bar will be locked against inward movement by the entrance of the guidein into the said peripheral groove, and w en the said guide-pin is returned to the intermediate position by the reverse movement of the rotatable sleeve, the said push-bar may be moved inward to cause the withdrawal of the latch-bolt from its outward projection.

5. In a lock and latch, the combination of the inner plate having the inwardly-projecting boss provided with the limiting-shoulders, with the rotatable sleeve provided with the recessed flange, the inwardly-projecting guide-pin carried by said sleeve, the push-bar provided with the peripheral and longitudinal grooves adapted for the traverse of the guide-pin, and the spring-actuated pin adapted to enter the recess of the said flange to serve as a frictional stop for indicating the position of said rotary sleeve, in

which the guide-pin will be presented in line with the longitudinal groove of the push-bar.

6. In a lock and latch, the combination of the outer plate, with the push-bar of the outer plate provided with a notch, the engaging pin also provided with a notch, the spring for imparting outward movement to the push-bar and inward movement to the engaging pin, the rocking segment engaging with the notches of the push-bar and the en- 5 gaging pin, and serving to transmit the required movement.

7. In a lock and latch, the combination of the outer knob, the latch-bolt, the spring for actuating the latch-bolt, a key-actuated tumbler-slide held in the knob, the rocking segment, the sliding push-bar connected with the latch-bolt, and connecting devices between the rocking segment and the said push-bar whereby upon moving either the tumbler-slide or the push-bar longitudinally inward the latch-bolt will be retracted.

8. In a lock and latch, the combination of the outer knob, the latch-bolt, the spring for actuating the latch-bolt, a key-actuated tumbler-slide held in the knob and adapted for longitudinal inward movement, the pushbar provided with the peripheral and longitudinal grooves and operatively connected with the latch-bolt, and connecting devices between the rocking segment and the said push-bar and the rotatable sleeves provided with the guiding-pin adapted to enter the peripheral groove of the push-bar, and hold the latch-bolt in its engaged position against the inward movement of the tumbler-slide.

JOHN HOPE, JR.

Witnesses:

SOCRATES SCHOLFIELD, JOHN S. LYNoH. 

